Merge FileFormats dll into Game and reorganise namespaces.

OpenRA.Game/Graphics/PlayerColorRemap.cs

@@ -0,0 +1,56 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using OpenRA.Primitives;
+
+namespace OpenRA.Graphics
+{
+	public class PlayerColorRemap : IPaletteRemap
+	{
+		Dictionary<int, Color> remapColors;
+
+		public static int GetRemapIndex(int[] ramp, int i)
+		{
+			return ramp[i];
+		}
+
+		public PlayerColorRemap(int[] ramp, HSLColor c, float rampFraction)
+		{
+			// Increase luminosity if required to represent the full ramp
+			var rampRange = (byte)((1 - rampFraction) * c.L);
+			var c1 = new HSLColor(c.H, c.S, (byte)Math.Max(rampRange, c.L)).RGB;
+			var c2 = new HSLColor(c.H, c.S, (byte)Math.Max(0, c.L - rampRange)).RGB;
+			var baseIndex = ramp[0];
+			var remapRamp = ramp.Select(r => r - ramp[0]).ToArray();
+
+			// reversed remapping
+			if (ramp[0] > ramp[15])
+			{
+				baseIndex = ramp[15];
+				for (var i = 15; i > 0; i--)
+					remapRamp = ramp.Select(r => r - ramp[15]).ToArray();
+			}
+			
+			remapColors = remapRamp.Select((x, i) => Pair.New(baseIndex + i, Exts.ColorLerp(x / 16f, c1, c2)))
+				.ToDictionary(u => u.First, u => u.Second);
+		}
+
+		public Color GetRemappedColor(Color original, int index)
+		{
+			Color c;
+			return remapColors.TryGetValue(index, out c)
+				? c : original;
+		}
+	}
+}